Planograph co



1.]. BODY, L. LONG, M. L. JOHNSON. C. F. KILGORE AND A. BLEVlNS.

MINE DOOR OPERATING MEANS.

APPLLCATLON FILED JAN. 16. [9!9.

5444mm tow JZ' Bow 55 la/VG M. Lab/mass C. 15' b74008;

Patented July 29, 1919.

3 SHEETS-SHEET I.

J. J. BODY, L. LONG, M. L. JOHNSON. C. F. KILGORE AND A. BLEVINS.

MINE DOOR OPERATING MEANS.

APPLICATION FILED JAN. 16. 1919.

51mm J J 5001 LEE .1, one N. L. To/4080 C. f. K/LeoRE A. ELEV/MaPatented July 29, 1919.

' 3 SHEETSSHEET 2 PH co., WASHINGTON, o. c.

THE COLUMBIA PLANOGRA 3 SHEETS-SHEET 3.

. C. F. KILGORE AND AIBLEVINS.

MINE DOOR OPERATING MEANS.

APPLICATION FILED JAN. 16. I919 Patented July 29, 1919.

J. J. BODY, L. LONG, M. L. JOHNSON k\\\\\\ Q I THE COLUMBIA PLANO RAPNcm, WASHINGTON, D. IL

JOSEPH J. BODY, LEE LONG, AND MASON L. JOHNSON, OF DANTE, AND CHARLES E.KILGORE AND ALONZO BLEVINS, OF COEBURN, VIRGINIA.

MINE-DOOR-OPERATING MEANS.

' Specification of Letters Patent.

Patented July 29, 1919.

Application filed January 16, 1919, Serial No. 271,452.

To all whom it may concern:

Be it known that we, J osErH J. BODY, LEE LONG, and MASON L. JOHNSON,citizens of the United States, residing at Dante, in the county ofRussell and State of Virginia, and CHARLES F. KILGORE and ALoNzoBLEVINS, citizens of the United States, residin 'at Coeburn, in thecounty of Wise and tate of Virginia, have invented certain new anduseful Improvements in Mine-Door-Operating Means; and we do declare thefollowing to be a full, clear, and exact description of the invention,such as will enable others skilled in the art to which it appertains tomake and use the same.

Our invention relates to improvements in mine door operating mechanismssuch as disclosed in United States Patent #1,255,697, of February 5,1918, granted to J. J Body, M. L. Johnson, C. F. Kilgore, and A.

. Blevins, the object of the present invention being to simplify themechanism in such a manner as to obtain equally good results withconsiderably less parts.

With the foregoing in view, the invention resides in the novel featuresof construction and unique organization of parts hereinafter fullydescribed and claimed.

Figure 1 of the accompanying drawings is a top plan view of a mine trackand the door operating means, showing the doors in horizontal section.

Fig. 2 is a side elevation of the parts disclosed in Fig. 1.

Fig. 3 is a detail perspective view of one of the door opening rods andits respective slide.

Fig. 4 is an enlarged top plan view of a portion of the door openingmeans.

Fig. 5 is a sectional view as indicated by the line 5-5 of Fig. 4.

Fig. 6 is a view similar to Fig. 4 but indi eating the relativepositions of parts when the doors are opened.

Fig. 7 is'a vertical transverse section on the plane of the line 77 ofFig. 1.

In the drawings above briefly described, a v

' mine track is shown passing'through atunnel 1 and consisting of rails2, and ties 3, a depressible car-operated member bemg provided of thesame construction and operation as disclosed in the patent abovereferred to, said member cons1stmg of mam horizontal depressible rails4, inclined end rails 5, and transverse bridle bars 6 con necting theseveral rails. Links 7 depend from the ends of the rails 41 and arepivoted to crank arms 8 on transverse rock shafts 9 which are mounted insuitable bearings below the rails, the ends of said rock shafts that thecrank arms 8 of one shaft converge upwardly with respect to those of theother shaft and that this arrangement causes turning of the two shaftsin a clockwise manner when a car approaches in one direction, andcounterclockwise when the car is traveling in the opposite direction;and on account of the arrangement yet to be specified the horizontallyswinging doors 11 are opened in the direction in which the car istraveling.

A pair of longitudinal door opening members 12 extend longitudinallyalong opposite sides of the track and at their ends are pivoted to thecrank arms 10. The two members 12 and associated parts are of identicalconstruction, and only the parts at one side of the track will thereforebe described in detail, although the same reference characters areapplied to the features at the other side of said track.

Member 12 consists of a central slide bar 13 and oppositely extendinglongitudinal rods 14 secured thereto in a preferred manner, said slidebar being shown as provided with lugs 15 through which the inner ends ofthe rods 14 pass, nuts 16 being threaded on said rods in contact withopposite sides of the lugs. By this arrangement, any necessaryadjustments'in the length'of the door opening member 12 may be easilymade. The outer edge of the slide bar 13 is provided with gear teeth 17meshing with a pinion 18 carried by the lower end of the vertical shaft19 which carries one of the remain closed and for obtaining this result,permitting opening of saiddoors when re quired, and again closlngthenrafter pas sage of the car, the following provisionis" adjustablecollars 21 on said rods, the inner" ends 5 of said ispringsy however,resting against slides 22 which arepreferably in the form of T-shapedmetal keys received in" longitudinal slots 23 formed in the rods 14,

said slides being 'lnormallyloc'atec'l at the in ner ends of the slots23 as seen infFigsJd and 5, and'then bearing against fixed abutment's"24'through which the inner ends of the rods 14 may slide. Theabutments- 24 maybe of any preferred form, but they are.

preferably constructed by bending the ends of a longitudinal bar 25'asshown, said'ba'r being secured to the upper side of one of the ties'3and-being braced theretoat 26. 7

By the" arrangement of springs, slides, collars and abutments abovedescribed, both however, the do'orsare opened and two of the springs"come into play against their re spective abutments, .while the othersprings move away from the abutmentsagainst which their slides 22-werenormally engaged (see Fig..:6). the compressed springs .return theseveral parts to 3 their Iinitial positions, unretarded i by theother-springs, since the latter have Y this m p ,"direction, means forsliding s'aid door-open not been compressed. Allowing only one set ofsprings to come into play when they dooris opened, isalso-ofadvantagesince'it prevents eXcessiVe operation of the springsandpossible weakening-thereon The doors 11 may, of 'course, be ofanyadequate construction but they=are prefer-' ably-provided with glasscovered View open ings-27.- The'spaceat one side of the doors isprefenablyclos'ed by boards or the: like 28--- (Rig-7), while adoor;29-is-provided'atthe opposite side of= the track-topermit minersandi other' workmen to travel through tthetunnel. without opening thedoors 'll.

From ,the foregoing, ,taken in connection: with the accompanyingdrawings;- it twill-be- J seen that we-rhave greatly simplified the:doom operating qnechan-ism: shown in-fthe;- patent abovereferred: to,yet that no-advantages5- have been". sacrificed by such-s'implificationfi In fact-, -thepresent inventionis ofgreat-advantageover theprior device, due'to' its rev ducedcost, ease -of%operationand-economy of upkeep. a

S'nce-probabl-yhthe best 'IGiEH'lliSdElI'B 'obtained from thedetails-shownand-described,--' they mayw-be -foll'owed if 1 desired, butwithim the scope of the invention as claimed, considerable latitude isallowed for'makmg nu- 'merous'mi'nor changes.

What we claim is:

1. In combination wi'tha door adapted to extend across a roadway,car-operated means adapted for disposition on said roadway, a

* longitudinal door-opening member, connectother ends ofsaidispringsabear, said slides I being carried by Sitlddoor-openingmember,

and abutments against -which said slides' bear, said abutmentsbelngfixed -w1th're-- spect to saidwdooropening-member; oneslide beingmova'ble away from its respective- M "abutment when the door openingamemben springs normally'exert their tensionto hold the members 12 in aneutral position, thereby "holding the' .doors closed. Whenuthemember-s12 are shifted in either direction,v

longitudinal doer openingmemben connect- -1ng means between-saiddoor-opening member and door for opening the-latter in eithering memberin either-directionupon operation of-said car-operated means, accordlngto the direction in which the car is travelmg salong the roadway, a pairof coiled springs I mounted on said door-opening-=membe1-i-and 10 5having' v-one end: arranged for movement bodlly thei=ewit-h,- slidesagainst which-r the other ends of said springs i'ibear, said door'opening member having slots receiving said 9 slides, the latternormally-' resting atone end 11 of said slots, and abutmentsagainstwliich saidslides'bear, saidabutments being fixed with respect tosaid door opening member; 1 'one slide being movable away from itsirespective abutment: when the door-opening 115 member slides 1 :in:one"'direction= and said I memb'er=then-moving with 'respect" to the-other slide, and vice versa-j 3. In combination with a door; adapted toextend across a roadway, car-operate'd' means-v1 20 adapted fordisposition on 'said roadway; a longitudinaldoor=openingmemberfconnecting means between" said door-opening mem berand :said door 'for*openingthe' latter in either direction, means forsliding saiddoorl25 opening member in either direction T up operation ofsaid car operated ineans, ac

cording to the direction 'in whieh ithe caf-fis travelingalong theroadway, a pair of spring Yr devices located at spaced points on s id 21door-opening member, one end of said spring devices being mounted formovement bodily with said door-opening member and the other ends of saidspring devices being slidable on said door-opening member, and abutmentmeans against which said slidable ends of said spring devices bear, saidabutment means being fixed with respect to said door-operated member;each spring device being movable away from said abutment means when saiddoor-opening member slides in a direction to compress the other springdevice.

In combination with a door adapted to extend across a roadway,car-operated means adapted for disposition on said roadway, alongitudinal door-opening member, connecting means between saiddoor-opening member and door for opening the latter in elther direction,means for slldlng said door-opening member in either direction uponopera- Copies of this patent may be obtained for five cents each, byaddressing the tion of said car-operated means according to thedirection in which the car-1s traveling along the roadway, abutmentmeans with respect to which said door-opening member slides, shoulderson said door-opening member spaced from said abutment means, and springdevices mounted on said door-opening member between said abutment meansand said shoulders, one of said spring devices being compressed when thedoor-opening member slides in one direction and the other spring devicebeing similarly compressed when said member slides in the otherdirection.

In testimony whereof we have hereunto set our hands.

JOSEPH J. BODY.

LEE LONG.

MASON L. JOHNSON.

CHARLES F. KILGORE.

ALONZO BLEVINS.

Commissioner of Patents,

Washington, D. G."

